Lines of longitude converge as they approach the poles.

经线在靠近两极时逐渐靠近，最终汇聚在一起。

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The map even includes lines of latitude and longitude.

这张地图甚至包含了经线和纬线。

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To modern time measure, people divide the surface of the earth into 24 time zones according to longitude lines. This method was established by the International longitude Conference in 1884.

到了近代，将地球表面按经线等分为24个时区，这是由1884年国际经度会议制定的。

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All of the lines of longitude meet at the top and bottom of the world.

VOA: special.2010.07.14

The lines of longitude go the other way from latitude lines.

VOA: special.2010.07.14

These buoys are placed at intervals along specific lines of longitude throughout the Pacific and Atlantic Oceans.

CNN: La Nina spawns extreme weather

It recommended using geometric lines of latitude and longitude to convey a three-dimensional Earth on a two-dimensional surface, and it included the co-ordinates of over 8, 000 locations in the ancient world.

ECONOMIST: There is no such thing as an objective map